How To Fix WY074 - Change to supplier & planned for &

SAP Error Message - Details

• Message type: E = Error

• Message class: WY - Supplier Master

• Message number: 074

• Message text: Change to supplier & planned for &

What causes this issue?

You have made a planned change for a certain date for a vendor.
The changes are stored in the database and can be activated on that
date.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WY074 - Change to supplier & planned for & ?

  SAP Error Message:
  
  WY074 – Change to supplier & planned for &
  
  1. Cause of the Error
  The message WY074 typically occurs in the context of purchasing documents (such as Purchase Requisitions or Purchase Orders) when there is an attempt to change the supplier or vendor assigned to a line item that is already planned or linked to a specific supplier in the system.
  This error is a warning or information message indicating that the supplier for the item has been changed, and the system is informing you about the planned supplier that was previously assigned.
  In other words:  
  
  The system had a planned supplier assigned to the item (e.g., from a previous planning run or manual assignment).  
  You are trying to change the supplier/vendor on the document line.  
  SAP is alerting you that the supplier is being changed from the originally planned one to a new one.
  
  
  2. When Does It Occur?
  
  During the creation or change of Purchase Requisitions or Purchase Orders.  
  When the system has a planned supplier assigned (e.g., from MRP or source list) and you manually change the supplier/vendor on the document.  
  It can also appear when the source of supply is changed or when the system tries to update the supplier based on planning data.
  
  
  3. Solution / How to Handle
  
  Review the supplier change: Confirm that changing the supplier is intended and correct.  
  Check source list and info records: Verify if the new supplier is valid and maintained in the source list or info records for the material.  
  Adjust planning data if necessary: If the planned supplier is outdated or incorrect, update the planning data or source list accordingly.  
  Ignore if informational: Sometimes, WY074 is just an informational message (warning) and does not block the transaction. You can proceed if the supplier change is valid.  
  Check user exit or custom logic: In some systems, custom validations or user exits might treat this message as an error. Review any custom code if the message is causing a block.
  
  
  4. Related Information
  
  Message Class: WY (Purchasing)  
  Transaction Codes: ME51N (Create Purchase Requisition), ME21N (Create Purchase Order), ME22N (Change Purchase Order)  
  Related Tables:  
  
  EKKO/EKPO (Purchase Order header/item)  
  EBAN (Purchase Requisition)  
  MAST (Material to BOM)  
  MRP planning tables (MDVM, MDTB)  
  
  
  SAP Notes: Check SAP Notes related to WY074 for any known issues or patches.  
  Configuration: Source list and info record maintenance affect supplier assignment.
  
  
  Summary
  
  
  
  Aspect
  Details
  
  
  
  
  Cause
  Supplier/vendor on purchasing document line changed from the originally planned supplier.
  
  
  Effect
  SAP issues message WY074 to inform about the supplier change.
  
  
  Solution
  Verify supplier change is correct; update source list or planning data if needed; proceed if informational.
  
  
  Related Tcodes
  ME51N, ME21N, ME22N
  
  
  
  
  If you want, I can help you with specific steps to check or fix this in your system. Just let me know!